PMK-21

The software mechanism PMK-21 is designed to work out the time program and issue signals to turn on and off the heating elements of the voltage blades and the steering of the propeller helicopter. From the SGO-30U generator. PMK-21 requires a pulsed power supply for the secretion elements of the boost and steering blades, i.e. period alternately connects all sections to the DC bus 208V 400Hz.